You might have seen something like these on facebook . You can also have facebook status updates with a tag like this even if you do not have an actual device . Install this app and update your status update through the app , the status update will look like it was posted from a real device ( that you don't have ;) ) .

Your facebook friends will be amazed to see your status updates which are posted from different devices like an Ipad , Blackberry etc .

IMPORTANT ! : If the statuses that you update via our can be seen by you only please goto facebook.com > settings > account setting s > privacy and then choose everyone for "who can see my stuff" . Hope it helps :-)